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STEEL BRIDGE COATINGS RESEARCH.
| 题名： | STEEL BRIDGE COATINGS RESEARCH. |
| 作者： | Kogler-RA Jr.; Chong-S-L |
| 关键词： | STEEL-BRIDGES; COATINGS-; CORROSION-PROTECTION; INTERMODAL-SURFACE-TRANSPORTATION-EFFICIENCY-ACT; HIGH-PRIORITY-NATIONAL-PROGRAM-AREA; SURFACE-PREPARATION; LIFE-CYCLE-COSTS; COMPLIANCE-; RESEARCH-; MATERIALS-TESTING; ENVIRONMENTAL-ISSUES; WASTE-DISPOSAL; BRIDGE-REPAIRS; FUND-ALLOCATIONS |
| 摘要： | Maintaining corrosion protection of steel bridges presents a major challenge to bridge owners. Not only are a large percentage of steel bridges reaching a critical level of deterioration, but the cost and logistical problems associated with necessary steel and coating system maintenance are compounded by the lead-containing paints used to coat most of these bridges. Traditionally the Federal Highway Administration's (FHWA's) role in bridge painting has been limited to new construction and major roadway rehabilitation projects, but recent changes in federal allocations (i.e., the Intermodal Surface Transportation Efficiency Act of 1991) have shifted funds to routine maintenance projects. Focus has turned to bridge preservation with the establishment of a High-Priority National Program Area (HPNPA) for bridge coatings. The program has targeted the key issues of coating material performance, surface preparation requirements, corrosivity of various environments, environmental compliance and impact, toxicity characteristics, and containment and disposal of waste generated during typical bridge repainting projects. This article outlines the various projects conducted under the bridge coatings HPNPA and provides the key overall findings. Program results are focused on several key technical issues that are expected to become increasingly important in the bridge coating area: life-cycle cost minimization, regulatory compliance, ongoing research, and advanced material testing protocols. |
| 总页数： | Public Roads. 1997/07. 61(1) pp35-40 (9 Phot., 1 Tab., Refs.) |
| 报告类型： | 科技报告 |
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